From cd39463876463743b80351940115501fd80fc8de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Thu, 26 Sep 2019 13:00:24 +0200
Subject: [PATCH] Shaders: verify that no GL errors happened during
 construction.

---
 src/Magnum/Shaders/Test/DistanceFieldVectorGLTest.cpp | 4 ++++
 src/Magnum/Shaders/Test/FlatGLTest.cpp                | 2 ++
 src/Magnum/Shaders/Test/MeshVisualizerGLTest.cpp      | 2 ++
 src/Magnum/Shaders/Test/PhongGLTest.cpp               | 2 ++
 src/Magnum/Shaders/Test/VectorGLTest.cpp              | 4 ++++
 src/Magnum/Shaders/Test/VertexColorGLTest.cpp         | 4 ++++
 6 files changed, 18 insertions(+)

diff --git a/src/Magnum/Shaders/Test/DistanceFieldVectorGLTest.cpp b/src/Magnum/Shaders/Test/DistanceFieldVectorGLTest.cpp
index 3beb6c0e7..9ba2b0ba1 100644
--- a/src/Magnum/Shaders/Test/DistanceFieldVectorGLTest.cpp
+++ b/src/Magnum/Shaders/Test/DistanceFieldVectorGLTest.cpp
@@ -55,6 +55,8 @@ void DistanceFieldVectorGLTest::construct2D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void DistanceFieldVectorGLTest::construct3D() {
@@ -66,6 +68,8 @@ void DistanceFieldVectorGLTest::construct3D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void DistanceFieldVectorGLTest::constructMove2D() {
diff --git a/src/Magnum/Shaders/Test/FlatGLTest.cpp b/src/Magnum/Shaders/Test/FlatGLTest.cpp
index c4a91c841..67913e4f1 100644
--- a/src/Magnum/Shaders/Test/FlatGLTest.cpp
+++ b/src/Magnum/Shaders/Test/FlatGLTest.cpp
@@ -233,6 +233,8 @@ template<UnsignedInt dimensions> void FlatGLTest::construct() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 template<UnsignedInt dimensions> void FlatGLTest::constructMove() {
diff --git a/src/Magnum/Shaders/Test/MeshVisualizerGLTest.cpp b/src/Magnum/Shaders/Test/MeshVisualizerGLTest.cpp
index bb5a0b6d5..41477c75c 100644
--- a/src/Magnum/Shaders/Test/MeshVisualizerGLTest.cpp
+++ b/src/Magnum/Shaders/Test/MeshVisualizerGLTest.cpp
@@ -62,6 +62,8 @@ void MeshVisualizerGLTest::construct() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 #if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
diff --git a/src/Magnum/Shaders/Test/PhongGLTest.cpp b/src/Magnum/Shaders/Test/PhongGLTest.cpp
index b0c96dcce..4d735050c 100644
--- a/src/Magnum/Shaders/Test/PhongGLTest.cpp
+++ b/src/Magnum/Shaders/Test/PhongGLTest.cpp
@@ -345,6 +345,8 @@ void PhongGLTest::construct() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void PhongGLTest::constructMove() {
diff --git a/src/Magnum/Shaders/Test/VectorGLTest.cpp b/src/Magnum/Shaders/Test/VectorGLTest.cpp
index 3820f965d..8c2368938 100644
--- a/src/Magnum/Shaders/Test/VectorGLTest.cpp
+++ b/src/Magnum/Shaders/Test/VectorGLTest.cpp
@@ -55,6 +55,8 @@ void VectorGLTest::construct2D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void VectorGLTest::construct3D() {
@@ -66,6 +68,8 @@ void VectorGLTest::construct3D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void VectorGLTest::constructMove2D() {
diff --git a/src/Magnum/Shaders/Test/VertexColorGLTest.cpp b/src/Magnum/Shaders/Test/VertexColorGLTest.cpp
index 588b43fdb..85d9eb6f9 100644
--- a/src/Magnum/Shaders/Test/VertexColorGLTest.cpp
+++ b/src/Magnum/Shaders/Test/VertexColorGLTest.cpp
@@ -55,6 +55,8 @@ void VertexColorGLTest::construct2D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void VertexColorGLTest::construct3D() {
@@ -66,6 +68,8 @@ void VertexColorGLTest::construct3D() {
         #endif
         CORRADE_VERIFY(shader.validate().first);
     }
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
 }
 
 void VertexColorGLTest::constructMove2D() {